stencil (n.)

1707, not recorded again until 1848, probably from Middle English stencellen "decorate with bright colors," from Middle French estenceler "cover with sparkles or stars, powder with color," from estencele "spark, spangle" (Modern French étincelle), from Vulgar Latin *stincilla, metathesis of Latin scintilla "spark" (see scintilla).

"to produce a design with a stencil," 1861, from stencil (n.). Related: Stenciled; stenciling (1781 as a verbal noun).